TASWATER will spend almost $1.9 million to stop foul odours emanating from a sewage pump station causing issues in an area in Devonport frequented by tourists and locals.

TasWater chief executive Mike Brewster said it was investing $1.87 million on a new odour control system and standby generator and replacing the pump station switchboard.

"This project will improve the reliability of the pump station during power outages and reduce odours," Mr Brewster said.

"A temporary odour control unit was installed in December 2013 to help reduce the intensity and frequency of odours, while odour monitoring was carried out.

"The data gathered from the monitoring will be used to help us select an odour control unit that will be most effective at dealing with the odours.

"Works on the Parker Street sewage pump station are expected to commence during the latter half of 2014."

After lobbying on behalf of the residents who petitioned the Devonport City Council to get the pump station problem fixed, Alderman Leon Perry, a part- owner in the old Motors building in Victoria Parade, said it was pleasing to see there would be a permanent solution found.

Upset residents and business owners were concerned about the rotten stench, particularly in certain weather conditions.

Several complaints were lodged with Cradle Mountain Water (now TasWater) and the council.

A petition with 169 signatures was presented to the council in July last year which highlighted the extent of the problem and the number of people affected.

At the time Parker Street property owner Angela Tyson said the rotten smell was adversely impacting on a lot of people.

"You go to the Taste the Harvest event and it becomes taste the sewage when the wind is blowing in the right direction," Ms Tyson said last year.

"I can't see how the area is going to be expanded and developed as part of the Living City plan when they've got this recurring problem and can't even maintain basic sanitation for the infrastructure we already have."

Ms Tyson said tourists walking on Victoria Parade signed the petition because of the smell.